So... I needed a diorama to display my Street Fighter collection at an event, so with the help from a friend we made the basic structure with panneled cardboard. Then we put a first thin coat of plaster to unify the surfaces. Later I added more plaster in a thicker coat to make the wall and street floor. Once dry, I cut the forms of the bricks with a knife, and then painted with acrylic using 3 colours in a sponge to get some tone variations on the bricks. I drew the Shadaloo skull graffitty with pencil and then painted with white acrylic.
I glued some cracked pieces of plaster to make the stone surface of the side wall and then painted it. At last I made an oil barrel with a cardboard base coated with epoxy clay and painted with acrylics